package day03;

import java.util.Scanner;

public class DieHard {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int Mx=sc.nextInt();
        int My=sc.nextInt();
        int target = sc.nextInt();
        int [] x=new int[Mx];
        int [] y=new int[My];
        if(Mx+My<target){
            System.out.println("false");
        }




    }
}
